EBK STATISTICS FOR BUSINESS & ECONOMICS
12th Edition
ISBN: 9780100460461
Author: Anderson
Publisher: YUZU
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Chapter 3.4, Problem 50E
Naples, Florida, hosts a half-marathon (13.1-mile race) in January each year. The
- a. George Towett of Marietta, Georgia, finished in first place for the men and Lauren Wald of Gainesville, Florida, finished in first place for the women. Compare the first-place finish times for men and women. If the 53 men and women runners had competed as one group, in what place would Lauren have finished?
- b. What is the
median time for men and women runners? Compare men and women runners based on their median times. - c. Provide a five-number summary for both the men and the women.
- d. Are there outliers in either group?
- e. Show the box plots for the two groups. Did men or women have the most variation in finish times? Explain.
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DATA TABLE VALUES
Meal Price ($)
22.78
31.90
33.89
22.77
18.04
23.29
35.28
42.38
36.88
38.55
41.68
25.73
34.19
31.75
25.24
26.32
19.57
36.57
32.97
36.83
30.17
37.29
25.37
24.71
28.79
32.83
43.00
35.23
34.76
33.06
27.73
31.89
38.47
39.42
40.72
43.92
36.51
45.25
33.51
29.17
30.54
26.74
37.93
I need help with this problem and an explanation of the solution for the image described below. (Statistics: Engineering Probabilities)
Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week. A sample of 65 weekly reports showed a sample mean of 19.5 customer contacts per week. The sample standard deviation was 5.2. Provide 90% and 95% confidence intervals for the population mean number of weekly customer contacts for the sales personnel.
90% Confidence interval, to 2 decimals:
( , )
95% Confidence interval, to 2 decimals:
Chapter 3 Solutions
EBK STATISTICS FOR BUSINESS & ECONOMICS
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